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Material Classification from Time-of-Flight Distortions

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dc.contributor.author Tanaka, Kenichiro en
dc.contributor.author Mukaigawa, Yasuhiro en
dc.contributor.author Funatomi, Takuya en
dc.contributor.author Kubo, Hiroyuki en
dc.contributor.author Matsushita, Yasuyuki en
dc.contributor.author Yagi, Yasushi en
dc.date.accessioned 2020-07-20T02:56:08Z en
dc.date.available 2020-07-20T02:56:08Z en
dc.date.issued 2019-12-01 en
dc.identifier.issn 1939-3539 en
dc.identifier.uri http://hdl.handle.net/10061/14007 en
dc.description.abstract This paper presents a material classification method using an off-the-shelf Time-of-Flight (ToF) camera. The proposed method is built upon a key observation that the depth measurement by a ToF camera is distorted for objects with certain materials, especially with translucent materials. We show that this distortion is due to the variation of time domain impulse responses across materials and also due to the measurement mechanism of the ToF cameras. Specifically, we reveal that the amount of distortion varies according to the modulation frequency of the ToF camera, the object material, and the distance between the camera and object. Our method uses the depth distortion of ToF measurements as a feature for classification and achieves material classification of a scene. Effectiveness of the proposed method is demonstrated by numerical evaluations and real-world experiments, showing its capability of material classification, even for visually indistinguishable objects. en
dc.language.iso en en
dc.publisher IEEE en
dc.relation.isreplacedby https://ieeexplore.ieee.org/document/8462767 en
dc.rights This work is licensed under a Creative Commons Attribution 3.0 License. For more information, see http://creativecommons.org/licenses/by/3.0/ en
dc.subject Image classification en
dc.subject Distortion measurement en
dc.subject Time-domain analysis en
dc.subject Optical distortion en
dc.subject Optical imaging en
dc.subject Frequency measurement en
dc.title Material Classification from Time-of-Flight Distortions en
dc.type.nii Journal Article en
dc.contributor.transcription タナカ, ケンイチロウ ja
dc.contributor.transcription ムカイガワ, ヤスヒロ ja
dc.contributor.transcription フナトミ, タクヤ ja
dc.contributor.transcription クボ, ヒロユキ ja
dc.contributor.transcription マツシタ, ヤスユキ ja
dc.contributor.transcription ヤギ, ヤスシ ja
dc.contributor.alternative 田中, 賢一郎 ja
dc.contributor.alternative 向川, 康博 ja
dc.contributor.alternative 舩冨, 卓哉 ja
dc.contributor.alternative 久保, 尋之 ja
dc.contributor.alternative 松下, 康之 ja
dc.contributor.alternative 八木, 康史 ja
dc.textversion none en
dc.identifier.jtitle IEEE Transactions on Pattern Analysis and Machine Intelligence en
dc.identifier.volume 41 en
dc.identifier.issue 12 en
dc.identifier.spage 2906 en
dc.identifier.epage 2918 en
dc.relation.doi 10.1109/TPAMI.2018.2869885 en
dc.identifier.NAIST-ID 84364090 en
dc.identifier.NAIST-ID 74650524 en
dc.identifier.NAIST-ID 74651670 en
dc.identifier.NAIST-ID 74651274 en

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